Cold mornings.........

[marc.l]

Had a few cold crisp morning drives in the E55 amd cant belive how much faster it feels when the temps drops. It feels loads quicker (its bloody fast in the summer) but how many extra bhp dose a supercharged car gain when its being force fed realy cold dense air ? 10 hp ? 25 hp? 50 hp ? I think i`m gaining around 10 %, is this possible ?